Australian 10-Year Bond Yield Hits 15-Year High on Strong GDP, Rate Hike Bets

Australia's 10-year government bond yield surged to a 15-year high on Wednesday, driven by robust economic growth data that intensified expectations for further interest rate hikes from the Reserve Bank of Australia (RBA).

Domestic Catalysts Drive Yield Spike

The yield on the benchmark 10-year note climbed 0.7% to touch 5.223%, a level not seen in over a decade. The sell-off was triggered by official data showing Australia's second-quarter Gross Domestic Product (GDP) expanded 0.4% quarter-over-quarter, surpassing market forecasts of 0.3%.

Annually, economic growth accelerated to 2.1%, also beating expectations of 1.8%. The figures point to a resilient economy, suggesting that the RBA's past rate increases have not sufficiently cooled demand to bring inflation back to its target.

Markets Reprice RBA Outlook

In response to the strong GDP numbers, traders aggressively repriced the outlook for RBA monetary policy. According to market pricing, the key takeaways include:

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• The implied probability of an RBA rate hike in September rose from 48% to 57%.
• A rate increase by November is now fully priced in by the market.
• Expectations for a further hike in the first quarter of 2027 jumped from a 62% probability to 82%.

This hawkish shift builds on concerns over persistent core inflation. While headline inflation eased in July, the RBA's preferred measure, trimmed mean inflation, remained at 3.6%, well above the central bank's 2% to 3% target range.

Global Pressures and Market Impact

The upward move in Australian yields was amplified by a global bond market sell-off. Rising oil prices, linked to geopolitical tensions between the U.S. and Iran, have reignited inflation fears worldwide, pushing yields higher in the United States, United Kingdom, and Japan.

The surge in yields weighed on Australian equities, with the benchmark S&P/ASX 200 index trading lower. Higher bond yields increase borrowing costs for businesses and make fixed-income assets more attractive relative to stocks, pressuring rate-sensitive sectors and reflecting broader risk-off sentiment.